Difference Between DDR2 and DDR3
Here is a question and answer between DDR2 and DDR3
Question – Which one is faster DDR2 or DDR3 ?
Answer – Obviously DDR3 idiot. That is why it was designed for. A lot of money went into its design and implementation. Without any speed gain what would have been purpose of it.
Question – Thanks for clarifying it. So DDR3-800 is faster than DDr2-800 right.
Answer – No DDR3-800 is slower than DDR2-800. Actually higher speed grades of DDR3 is faster than DDR2-800
Question – But you said DDR3 is faster than DDR2 just now.
Answer – Yes I did, but DDR3 must be much faster in speed than DDR2 in order that the throughput difference will be visible. For example DDR3-1333 is faster than DDR2-800.
You can read more in DDR3 and DDR2 differences from Application point of view. .